Door and operating means therefor



D. H- MORGAN DOOR AND OPERATING MEANS II-IERI EIFOR July 19; 1949.

5 SheetsSheet 1 Filed Feb. 8, 1946 Igalb HIM July 19, 1949. D. H. MORGAN 2,476,755 I noon AND OPERATING MEANS THEREFOR Filed Feb. s, 1946 J v 5 Sheets-Sheet 2 July 19, 1949. D. H. MORGAN I 2,475,755

DOOR AND OPERATING MEANS THEREFOR Filed Feb. 8, 1946 v 5 Sheets-Sheet 3 3 wu Mm DdvzldHMorgiazc D. H. MORGAN 2,476,755

DOOR AND OPERATIfiG MEANS THEREFOR 5 Sheets-Shae; 4

Filed Feb 8, 1946 m E W 1 Dal "10,?

"I I I 1 15 ..I5 26... J5 E v I 3 I id/HMOIgiLm July 19, 1949; D. H. MORGAN 2,476,755

DOOR AND OPERA TING MEANS THEREFOR Fild Feb. 8, 1946 I I 5 Sheets-Sheet 5 FiQ.7. '7

H RG19 27 I 7 El 29 so u ilwuc/nhw Dw LIZHMOFQQR 26 W 66 a6 g installationand maintenance 60st; and ther- Patented July 19, 1949 .\2 4'1s,7551 a David H; Morgan, Youngstown ohio Applica IT v 6 Claims. 7

This invention relates to"so called canoliy" i doors; i. e doors ofthe typewhioh, when open,

extend horizontally, or ubstantially horizontall forwardly, canopy-likeyfroni a doorway at or near r, .1 21*. o DJ: l J Lr- More particularly, the; present invention re.-

comprising an upper leaf and' a lower leaf, thfe 'former' of which is'svrlingaiblebetweeh' vertical andsubstantially horizontal closed and p en positions, respectivelyfandjthe latter of which is vertically slidable relative to the former-between raised and lowered, open and blosedpositions,

outstanding advantages are attained; Foreiample, it is 'pos'sible tojopen and close the lower part thereof closed and it is possible to utilize the space to the height of the lower leaf and to either side of thedoorwayandcloselyadjacent thereto for any desired purfiose withoutinter of the twoleaves asafunit to open and closeth'e complete doorway need be afieoted'onlyfwhen; the lower half "is in its raised or openpositio'n relative to the upper leaf." Bey 0rid this, special and "iniportant objectsof the present "inventionjare provide a simplelatchftofasten' the 'upper'f er, and thereby both-leavesy against swinging-movenient' when both' leaves are closed" provide simple means"operabIe iri'iesp'onse on tame final portion of upward orio'pening sliding inoveinent of the lower le afrelative to thefupper' af 'to release said latch'to permit the two jleaves to swing as a unit toopenposition only-When the lowerleaf is substantially f ullyraised relative respectively. "By 'such"an' a'rrangement'fcert'ain "part of the doorway while maintaining theupper fering with "operation of "the" door,j sinoe swinging to the uppfir leaf; to provide simple,"-pi"act1oal oountjerbalanoemearisfor the lower leaffand'fir the d'oor as a wholeftd provide simple, practical operating means for the door and; in general,

to provide a door having the features nientiorie'd and which, at the sametirne; is ofsi-inple'; practical construction; comparatively low production,

oughly reliable and efiicient in service? With the foregoing arid 'other 'objects'j'injview,

which will "become'more' 'fully" apparent" as the nature ofthe inventionis' better understood, the same'oonsists'in a oor ahdits operating-means embodying the novel fe'atures of construction, combination and arrangement ofparts', as will be hereinafter more-ruin 'desoifibed, illustrated invthe accompanying rawing s and defined in the appended claims;

- In" I the "accompanying dravvings, jwherein like characters." of- 'i-eference 'denote corresponding parts in the difierent views? '-raise'd"position.

in the present instance and they are respeetively'." T

upon said ar s5 leaf' fl is slidablfmounted upon; movement between a closed position in which i fii ari 8, 1946; S r N0-.64.6,432 n; caee e 1.04 a

A I Fig'ure 1" is' a', verticaL'f' transverse is through a door and its operating'n ean 'str'ucted in accordance with one practical bodirne'nt o'f the invention, the leajves'fbe g s in theirjvertically disposed, closed positi' Figure 2 is 'a view similar to Figure 1 show; the owe lea r vd1 a r x m ely ito the tion in' whieh it "initiates latch release "of i t t a planr e tl e g ur sh we i Figure '11 is an'enlarged'detml view showing the manner of-piv'otally rnduntingthe arms u wh mh e fi ereiai imoyntei;

ation ofthe struc ture shown in Figure 12;"and" Figure 14'fis acros jsection on theline [4-H Figure 13 is a rear ele of Figure' 13. jv Referring o th n n mu; nate's" apart offa' 'biiildin tructu're' having}; o y a, and-Bdsign'ate's';genrally,fth p s- 5911i? 'dboi'bontrollihg' '"slai'd doorway af The door-B c'o'ihp'rise's ani upper l e a rality or rms'wz which pf fe'r a 7 w in form of 'I-b'eams'.

Tvvd "Sucharm ar illu being I disposed atopposite side edges of th "way 0, adjacent to the top thereof. =said arms I2 preferably extend from the bottom 'of the upper leaf 7 II) to points well above the to the doorway, whereby the two leaves are.

swingable as a unit between closed and open positions.

Preferably each leaf I and I I is approximately I one-half the height of the doorway a. In any event, when the door is fully closed the arms I2;

4 the arms I2, I2, in rearwardly offset relationship to the front leaf III, which is mounted upon the front portions of said arms, for free and easy sliding movement between raised and lowered positions relative to said upper leaf.

Mounted upon each pair of the channel members I5; I5, near their upper ends and disposed laterally outward with respect to said channel members, is a cam follower, preferably in the form of a roller 2I, for cooperation with a related fixed cam 22 to effect swinging movement I2 and the leaves In and II are disposed vertically with the upper leaf extending downwardly from the top of the doorway and closing the upper part of the doorway and the lower leaf extending between the lower edge of the upper leaf and the bottom of the doorway and closing the lower part of the doorway. With the leaves disposed vertically, the lower leaf may be raised and lowered relative to the upper leaf to open and 7 close the lower part of the doorway while the upper leaf remains in its vertical position maintaining theupper part of the doorway closed. Onthe other hand, means is provided whereby the upper leaf may be swung to open and close the upper part of the doorway only when the lower leaf is in substantially its fully raised position relative to said upper leaf. It is apparent, therefore, that the space in front of and behind and closely adjacent to the doorway may be utilized substantially to the height of the bottom .of the upper leaf for storage or other purposes without interference with operation of the lower leaf to open and close the lower part of the doorway and without interference with swinging movement of the two leaves as a unit to open and close the upper part of the doorway.

The arms I2, I2 may be pivotally mounted upon the building structure A in any suitable manner as, for example, by means of trunnions 'I3 suitably fixed to said arms and journaled in suitable bearing elements I4 suitably fixed to the building structure A at the sides of the door- Moreover,

,top of said upper leaf so as to constitute levers for swinging the leaves to open and close the upper part of the doorway.

The lower leaf Il may be mounted for sliding movement relative to the upper leaf III in any suitable manner.

In this connection, and as illustrated in the present instance, the lower leaf II is provided at each side edge thereof with a pair of opposed channel members I5, l5 which extend from the bottom of said lower leaf to points well above the top thereof. Between each -pair of these channel members (see Figures 11 to 13) is accommodated the rear portion of the related arm I2, while upon the web I6 of each arm I2, near the bottom of said arm, is mounted a pair of rollers I1, I! which are disposed, one

'to each side of said web and between the inwardly extending flanges of the channel members I5,

' I5, respectively. On the other handisee Fi .ure 10) the channel members I5, I5 near their upper ends, carry rollers I81 to operate against the inner faces of the rear flanges IQ of the arms I2 and other rollers 20, to operate against the rear faces of said arms I2. The lower leaf II thus is mounted upon the rear portions of purpose.

of the arms I2, I2 and the leaves I0 and II in ing movement of the lower leaf II relative to the upper leaf III.

The cams preferably are in the form of channel members suitably mounted interiorly of the building structure A above the top of the doorway a, and have downwardly directed, open, front end portions which are disposed in vertical alinement with the rollers 2I when the leaves II! and II are disposed vertically so as to receive said rollers 2I when the lower leaf II is raised. From their open, front end portions the cams 22 are curved upwardly, rearwardly and downwardly so that as their curves are followed by the rollers 2I, the arms I2, I2 and the leaves III and I I are caused to swing about the trunnions I3 from vertical toward horizontal positions. In this connection, it will be understood, of course, that curving of the cams 22 begins at points such that initiation of swinging of the arms I2, I2 and the leaves I!) and'II occurs only after the lower leaf I I is nearly fully raised and as it begins the final portion of its upward opening movement.

Any suitable means may be provided to prevent outward swinging movement of the upper portions of the arms I2, I2 and, consequently, inward swinging movement of the lower portions of the arms I2, I2, and of the leaves I0 and II carried by said arms, when said arms and said leaves are disposed vertically. For example, suitable stop plates 23 carried by the building structure to be engaged by the upper front portions of the arms I2, I2 may be provided for this On the other .hand, suitable latch means is provided to prevent rearward swinging movement of the upper portions of the arms I2, I2 and, consequently, outward swinging movement of the lower portions of said arms of the leaves II! and II carried thereby until the lower leaf II has been raised to nearly its fully open position relativev to the upper leaf II). In this connection and according to the construction specifically illustrated in the present instance, the

arms I2 carry, near their upper ends, latches 24 which are suitably formed to engage the related stop plate 23 and to assume latched positions lrelative thereto under the influence of gravity or suitable spring. means in response to forward swinging movement of the upper portions of the ing a substantially horizontally disposed forwardly extending arm 26 and a substantially vertically disposed, downwardly extending arm 21, the for- I -mer of which is connected to the related latch by a push-rod 28 and the latter of which is free from the spirit of the invention and scope of the appended claims.

I claim:

1. A door comprising an upper leaf pivoted for swinging movementsbetweensubstantially vertical and substantially horizontal closed and op n of the lower leaf, and means operable in response to the final upward sliding movement of said lower leaf to release said latch means to permit swinging of the two leaves as a unit to open position.

2. A door comprising a pair of arms pivoted intermediate their ends for swinging movements between substantially vertical and substantially horizontal positions, an upper door leaf fixed to said arms below the pivots thereof, a lower door leaf slidable along said arms between a. lower. closed position, extending below the bottom of said upper leaf and an upper, open position, behind and substantially in registration with said upper leaf, sheaves carried by said arms near their upper ends, cable drums spaced behind said arms, cables attached to said lower leaf and extending over said sheaves and connected to said drums to be wound thereon to raise said lower leaf and to swing said arms and thereby swing the two leaves as a unit to a substantially horizontal, open position, latch means operable during opening of the door to hold said arms and the upper leaf against door-opening swinging movement except during the final portion of upward, opening, sliding movement of said lower leaf, and means operable in response to the final portion of upward, opening, sliding movement of said lower leaf to release said latch means to permit swinging of said arms and the two leaves as a. unit by said cable to a door-open position.

3. A door comprising a pair of arms pivoted intermediate their ends for swinging movements between substantially vertical and substantially horizontal positions, an upper door leaf fixed to said arms below the pivots thereof, a lower door leaf slidable along said arms between a lower,

closed position, extending below the bottom of said upper leaf and an upper, open position, behind and substantially in registration with said upper leaf, sheaves carried by said arms near their upper ends, cable drums spaced behind said arms, cables attached to said lower leaf and extending over said sheaves and connected to said drums to be wound thereon to raise said lower leaf and to swing said arms and thereby swing the two leaves as a unit to a substantially horizontal, open position, latch means operable during opening of the door to hold said arms and the upper leaf against door-opening swinging movement except during the final portion of upward, opening, sliding movement of said lower leaf, means operable in response to the final portion of upward, opening, sliding movement of said lower leaf to release said latch means to permit swinging of said arms and the two leaves as a unit by said cable to a door-open position, and cam means cooperating with said lower leaf during the final portion of upward, opening, sliding movement thereof to initiate swinging movement of said arms and leaves toward door-open positions.

4. A door comprising an upper leaf pivoted for swing movements between substantially vertically and substantially horizontal closed and open positions, respectively, a lower leaf mounted for vertical sliding movement relative to said upper leaf between raised and lowered open and closed positions, respectively, latch means operable during opening of the door to hold the upper leaf against opening swinging movement except during the final portion of upward sliding movement of the lower leaf, means operable in response to the final upward sliding movement of said lower leaf to release said latch means to permit swinging of the two leaves as a unit to open position, and cam means cooperating with said lower leaf during the final portion of upward sliding movement thereof to initiate swinging movement of said leaves toward open positions.

5. A door comprising a pair of arms pivoted intermediate their ends for swinging movements between substantially vertical and substantially horizontal positions, an upper door leaf fixed to front portions of said arms below the pivots thereof, a lower leaf mounted on rear portions of said arms for sliding movement therealong between a lower, closed position, in which it extends below the bottom of said upper leaf and a raised, open position, in which it is disposed behind and substantially in registration with said upper leaf, means for sliding said lower leaf relative to said upper leaf and for swinging said leaves as a unit, and counterbalance means for said lower leaf, said counterbalance means comprising a weight mounted on the upper portions of said arms for sliding movement therealong, sheaves carried by said arms near their upper ends, and cables extending over said sheaves and connected at their ends to said weight and to said lower leaf, respectively.

6. A door comprising a pair of arms pivoted intermediate their ends for swinging movements between substantially vertical and substantially horizontal positions, an upper door leaf fixed to front portions of said arms below the pivots thereof, a lower leaf mounted on rear portions of said arms for sliding movement therealong between a lower, closed position, in which it extends below the bottom of said upper leaf and a raised, open position, in which it is disposed behind and substantially in registration with said upper leaf, means for sliding said lower leaf relative to said upper leaf and for swinging said leaves as a unit, counterbalance means for said arms and both leaves comprising a weight fixed to said arms near their upper ends, and counterbalance means for said lower leaf, said counterbalance means comprising a weight mounted on the upper portions of said arms for sliding movement therealong, sheaves carried by said arms near their upper ends, and cables extending over said sheaves and connected at their ends to said weight and to said lower leaf, respectively.

DAVID H. MORGAN.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,947,422 Morgan Feb. 13, 1934 2,262,976 Thomson Nov. 18, 194.1 2,407,674 Morgan Sept. 17, 1946 

